IFD 5 Series & IFD 4 Series Touch Screen GPS/NAV/COM - 8.33 freq selection

Print Page | Close Window

8.33 freq selection - sim or ifd540 pb?

Printed From: Avidyne
Category: Avidyne General
Forum Name: IFD 5 Series & IFD 4 Series Touch Screen GPS/NAV/COM
Forum Description: Topics on Avidyne's IFD 5 Series and IFD 4 Series Touch Screen GPS/NAV/COM
URL: http://forums.avidyne.com/forum_posts.asp?TID=504
Printed Date: 07 May 2024 at 7:58pm
Software Version: Web Wiz Forums 12.01 - http://www.webwizforums.com

Topic: 8.33 freq selection - sim or ifd540 pb?

Posted By: chflyer
Subject: 8.33 freq selection - sim or ifd540 pb?
Date Posted: 16 Dec 2014 at 5:58pm

I'm unable to enter various com frequencies on the sim. Is this a sim bug or also an issue with the real thing?

e.g.

120.350 autofills to 120.355 and exits the keyboard when I type the first 5

124.700 autofills to 124.705 when I type Enter after the 7.

118.975 gives an error msg when I enter the 7 - "please enter a valid COM frequency" and then forces the frequency to 118.990

-------------
Vince

Replies:

Posted By: AviJake
Date Posted: 18 Dec 2014 at 8:44am

We'll publish some enhanced explanation to this shortly after the new year. It's a very confusing issue in that there are "frequencies" in 25 KHz mode and "channels" in 8.33 KHz mode. In every case, the system is actually channelizing the proper frequency or channel but the display can be confusing.

Anyway, more on this after the new year.

-------------
Steve Jacobson
sjacobson@avidyne.com

Posted By: chflyer
Date Posted: 18 Dec 2014 at 8:59am

Now you've got me curious.

Whether channel or frequency, the display should reflect the published value, otherwise if I get no response I'll never know if it is a real transmission/communication issue or just because I have the wrong value selected, especially since there is no ID.

In this specific case, the "channels" I'm trying to select are LSZK airfied INFO freq (120.350), Zurich Information (124.700) which is Flight Information Service, and Dubendorf LSMD TWR (118.975). Dubendorf is active HX, so if there is no reply I need to be certain that I'm broadcasting on the right freq and can enter the D airspace without a clearance.

On my G430 this is a non-issue.... I just dial up the published value.

-------------
Vince

Posted By: chflyer
Date Posted: 06 Jan 2015 at 11:05am

Any additional explanation available yet?

Is your reference to 8.33kHz tuning improvements in 10.0.3.0 (FAQ Q92) also related to this somehow?

-------------
Vince

Posted By: chflyer
Date Posted: 14 Jan 2015 at 9:40am

Steve,

Any news on this?

-------------
Vince

Posted By: AviJake
Date Posted: 14 Jan 2015 at 9:10pm

Sorry. Been way too busy with Rel 10.0.3.0 end-game and getting Rel 10.1.0.0 ready for test. Still haven't got to this.

-------------
Steve Jacobson
sjacobson@avidyne.com

Posted By: jhbehrens
Date Posted: 08 Feb 2015 at 5:25pm

Hi Steve

Would appreciate an update. It seems that when I set the IFD to 8.33KHz spacing I can not select the regular 25KHz spaced frequencies anymore. 8.33 frequencies are getting common for IFR in Europe and this is a right pain. Is this fixed in 10.0.3.0?

Posted By: AviJake
Date Posted: 08 Feb 2015 at 6:05pm

Yes, that is fixed as part of Rel 10.0.3.0.

#3 in this list: http://forums.avidyne.com/forum_posts.asp?TID=488&PID=5245&#5245" rel="nofollow - http://forums.avidyne.com/forum_posts.asp?TID=488&PID=5245&#5245

-------------
Steve Jacobson
sjacobson@avidyne.com

Posted By: jhbehrens
Date Posted: 10 Feb 2015 at 1:42am

Glad to hear that!